3665331747 has 24 divisors (see below), whose sum is σ = 6600771840. Its totient is φ = 1904068080.

The previous prime is 3665331697. The next prime is 3665331751. The reversal of 3665331747 is 7471335663.

It is a happy number.

3665331747 is a `hidden beast` number, since 3 + 66 + 533 + 17 + 47 = 666.

It is not a de Polignac number, because 3665331747 - 2⁸ = 3665331491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3665331757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2643847 + ... + 2645232.

It is an arithmetic number, because the mean of its divisors is an integer number (275032160).

Almost surely, 2^3665331747 is an apocalyptic number.

3665331747 is a deficient number, since it is larger than the sum of its proper divisors (2935440093).

3665331747 is a wasteful number, since it uses less digits than its factorization.

3665331747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289103 (or 5289100 counting only the distinct ones).

The product of its digits is 952560, while the sum is 45.

The square root of 3665331747 is about 60541.9833421404. The cubic root of 3665331747 is about 1541.8345129173.

The spelling of 3665331747 in words is "three billion, six hundred sixty-five million, three hundred thirty-one thousand, seven hundred forty-seven".